Re: [PATCH 4.20 129/183] net: sfp: do not probe SFP module before were attached

[Sasha Levin]

On Mon, Feb 25, 2019 at 10:11:42PM +0100, Greg Kroah-Hartman wrote:
> 4.20-stable review patch.  If anyone has any objections, please let me know.
>
> ------------------
>
> From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
>
> [ Upstream commit b5bfc21af5cb3d53f9cee0ef82eaa43762a90f81 ]
>
> When we probe a SFP module, we expect to be able to call the upstream
> device's module_insert() function so that the upstream link can be
> configured.  However, when the upstream device is delayed, we currently
> may end up probing the module before the upstream device is available,
> and lose the module_insert() call.
>
> Avoid this by holding off probing the module until the SFP bus is
> properly connected to both the SFP socket driver and the upstream
> driver.
>
> Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

This one got fixed by 87454b6edc1b0143fdb3d9853285477e95af74a4 .

--
Thanks,
Sasha